The intestinal-type sinonasal adenocarcinoma is the second most common type of adenocarcinoma of the sinonasal tract, after adenoid cystic carcinoma. 

These tumors commonly involves the ethmoid sinus and/or nasal cavity. In advanced cases, like this one, local spread can affect the orbit, the pterygopalatine and infratemporal fossae, as well as the cranial cavity.